Airbed



FIG. 1 is a front perspective view of an airbed showing my new design.

FIG. 2 is a front right perspective view of the airbed of FIG. 1.

FIG. 3 is a front view thereof.

FIG. 4 is a rear view thereof.

FIG. 5 is the left side view thereof.

FIG. 6 is a right side view thereof.

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings depict portions of the airbed that form no part of the claimed design. 

CLAIM The ornamental design for an airbed, as shown and described. 